at the moment id say neither. either stay on 3.55 and run a 3.55 cfw and if you really want to go above 3.55 then use rebug 4.25 rex but like i say at moment id say wait on a 3.55cfw and keep watching the developments of ErmaC and Rogero. they are both pretty close to a fully working bugless cfw that is easy to install.

probably anytime within next few days to next few weeks (could even be hours)